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Finding the Fourth Proportional to 395.30, 595.91 and 368.87

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Solution

The fourth proportional to 395.30, 595.91 and 368.87 is: 556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.30 : 595.91 = 368.87 : x
  2. Step 2: Convert to fraction form
    395.30/595.91 = 368.87/x
  3. Step 3: Cross multiply
    395.30x = 595.91 × 368.87
  4. Step 4: Simplify right side
    395.30x = 219,813.32
  5. Step 5: Solve for x
    x = 219,813.32/395.30
  6. Step 6: Final answer
    x = 556.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.